OK in RSpec › Forums › Spectroscopy › Unable to calibrate a spectrum in ISIS › OK in RSpec 4 October 2018 at 5:17 pm #580046 John CoffinParticipant i calibrated the same star in RSpec using a third order polynomial and with an RMS of 0.6539, just by using the Balmer lines. I’d really rather be able to use ISIS as it is so much more powerful and does all the stacking etc.
